SMAJ4743E3/TR13

Single Zener Diodes Overview

The SMAJ4743E3/TR13 is a Zener diode from the SMAJ4728A through SMAJ4751A series manufactured by Microchip Technology. It features a nominal Zener voltage of 13.0 V with a test current of 19.0 mA. The device has a maximum dynamic impedance of 10.0 Ohms and a knee impedance of 0.25 Ohms at a knee current of 5 mA. Maximum reverse leakage current is 9.9 µA at 9.1 V. It operates within a temperature range of -65°C to +150°C, dissipates 2.0 W steady-state power, and utilizes an SMA (DO-214AC) surface-mount package.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Designed for high-density and low-profile circuit board mounting
• Utilizes void-free transfer molded thermosetting epoxy body meeting UL94V-O standards

Single Zener Diodes Applications

• Protection of sensitive electronics against voltage transients induced by inductive load switching
• Voltage regulation for ICs, MOSFETs, and signal lines in sensor units
• Applications in consumer, computer, industrial, automotive, and telecommunication equipment

Single Zener Diodes Procurement Notes

Verify component authenticity by checking manufacturer markings and datasheet alignment. Confirm RoHS compliance status via official documentation. Ensure storage conditions respect humidity sensitivity if applicable. Validate ordering suffixes against specific tolerance requirements. Cross-reference part numbers with official distributor catalogs to confirm availability and specifications.

Single Zener Diodes Selection Notes

Select this component for applications requiring precise voltage reference or regulation in compact designs. Consider the 13.0 V nominal breakdown and 2.0 W power dissipation capabilities. Evaluate thermal resistance and operating temperature limits for environmental compatibility. Compare dynamic impedance characteristics against circuit noise requirements. Verify package dimensions fit the target PCB layout constraints.

Single Zener Diodes Part Context

This component belongs to the SMAJ4728A through SMAJ4751A series of silicon Zener diodes. These devices are engineered for general-purpose voltage regulation and transient suppression in surface-mount configurations. The series offers extensive voltage selection ranging from 3.3 V to 30 V. They are designed to replace axial-lead equivalents while maintaining similar electrical performance profiles.

Single Zener Diodes Replacement Considerations

SMAJ4743A